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A*STAR articles

Displaying 1 - 5 of 5

Tuning into more compact laser designs

A laser developed at Agency for Science, Technology and Research (A*STAR), Singapore, can produce infrared beams over an unprecedented range of wavelengths. A*STAR scientists have developed a unique fast-pulsing fiber laser that has the widest wavelength output to date. This type of laser could replace several fixed-wavelength lasers and form the basis of compact devices useful for a range of medical and military applications.
7th November 2016

Holograms work throughout the visible spectrum

Holograms work throughout the visible spectrum
A*STAR researchers have created holograms from an array of silicon structures that work throughout the visible spectrum. Many recent advances in hologram technology use reflected light to form an image; however the hologram made by Dong Zhaogang and Joel Yang from the A*STAR Institute of Materials Research and Engineering uses transmitted light. This means the image is not muddled up with the light source.
10th August 2016

Silicon nanodisks can polarise light at any angle

Silicon nanodisks can polarise light at any angle
Manipulating magnetic and electric dipoles inside nanostructured insulators enables newfound control of light polarisation at any angle. Polarising filters produce richer, less reflective images by limiting vibrating light waves to one specific orientation. However, these filters only work with light that is reflected from a certain angle. An A*STAR-led team report that arrays of silicon nanodisks can polarise light at any angle, and into any desired orientation, improving photonic control over ultra-thin optical devices.
28th July 2016

Compact photonic sensors can provide accurate readings

Compact photonic sensors can provide accurate readings
Researchers at A*STAR are developing compact silicon photonic sensors that can provide accurate readings without being damaged by the toxic, corrosive or even explosive conditions within the machines. The expanding field of silicon photonics uses structures called waveguides to confine electromagnetic waves to one or two dimensions, so that the wave will change in response to external factors.
7th April 2016

'Nanoantennae' can manipulate light beams

'Nanoantennae' can manipulate light beams
Researchers in Singapore are using 'nanoantennae' to manipulate light beams. This may open the door to the development of new light-based technologies, such as display screens, and in energy harvesting and data transmission. It would allow, for example, the miniaturisation of traditional optical components, such as lenses, polarizers or beam-splitters, to nanoscale sizes.
10th March 2016

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SPIE Photonics Europe 2018
22nd April 2018
France Strasbourg